1345386657 has 8 divisors (see below), whose sum is σ = 1796037120. Its totient is φ = 895830320.

The previous prime is 1345386631. The next prime is 1345386661. The reversal of 1345386657 is 7566835431.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1345386657 - 2¹⁶ = 1345321121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1345386607) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 270657 + ... + 275582.

It is an arithmetic number, because the mean of its divisors is an integer number (224504640).

Almost surely, 2^1345386657 is an apocalyptic number.

It is an amenable number.

1345386657 is a deficient number, since it is larger than the sum of its proper divisors (450650463).

1345386657 is an equidigital number, since it uses as much as digits as its factorization.

1345386657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 547063.

The product of its digits is 1814400, while the sum is 48.

The square root of 1345386657 is about 36679.5127693921. The cubic root of 1345386657 is about 1103.9490719983.

The spelling of 1345386657 in words is "one billion, three hundred forty-five million, three hundred eighty-six thousand, six hundred fifty-seven".